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* sysdeps/generic/ldsodefs.h (rtld_global): Reorder some elements

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to fill in holes
	(rtld_global_ro): Likewise.

2007-06-18  Jakub Jelinek  <jakub@redhat.com>

	* elf/dl-addr.c (_dl_addr): Skip PT_LOAD checking if l_contiguous.
	Move PT_LOAD checking to...
	(_dl_addr_inside_object): ... here, new function.
	* elf/dl-sym.c (do_sym): If not l_contiguous,
	call _dl_addr_inside_object.
	* elf/dl-iteratephdr.c (__dl_iterate_phdr): Likewise.
	* dlfcn/dlinfo.c (dlinfo_doit): Likewise.
	* elf/dl-open.c (dl_open_worker): Likewise.
	(_dl_addr_inside_object): New function if IS_IN_rtld.
	* elf/dl-load.c (_dl_map_object_from_fd): Set l_contiguous if no
	holes are present or are PROT_NONE protected.
	* include/link.h (struct link_map): Add l_contiguous field.
	* sysdeps/generic/ldsodefs.h (_dl_addr_inside_object): New prototype.
This commit is contained in:
Ulrich Drepper
2007-06-19 22:59:48 +00:00
parent ae1ad3aebb
commit 9be09e060f
9 changed files with 93 additions and 41 deletions
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8
elf/dl-iteratephdr.c
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@ -1,5 +1,5 @@
/* Get loaded objects program headers.
Copyright (C) 2001,2002,2003,2004,2006 Free Software Foundation, Inc.
Copyright (C) 2001,2002,2003,2004,2006,2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2001.
@ -54,9 +54,9 @@ __dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
nloaded += GL(dl_ns)[cnt]._ns_nloaded;
if (caller >= (const void *) l->l_map_start
&& caller < (const void *) l->l_map_end)
/* There must be exactly one DSO for the range of the virtual
memory. Otherwise something is really broken. */
&& caller < (const void *) l->l_map_end
&& (l->l_contiguous
|| _dl_addr_inside_object (l, (ElfW(Addr)) caller)))
ns = cnt;
}